433 Cannon Hill Lane Merton SW20 9HH
APPLICATION FOR PRIOR APPROVAL IN RESPECT OF THE PROPOSED ERECTION OF A SINGLE STOREY REAR EXTENSION WITH A DEPTH OF 5.5M, MAXIMUM HEIGHT OF 3.78M AND EAVES HEIGHT OF 3M
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Progress
Application details
- Reference
- 25/P3781
- Local authority
- Merton
- Postcode
- SW20 9HH
- Ward
- Lower Morden
- Application type
- Prior Approval
- Property type
- House
Key dates
- Submitted
- 19 Dec 2025
- Validated
- 19 Dec 2025
- Comments close
- 15 Jan 2026
- Target decision
- 29 Jan 2026
- Decided
- 15 Jan 2026
Estimated project value
£68k–£115k
Based on the 27.9m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 27.95m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 391 CANNON HILL LANE, LONDON, SW20 9HHTerraced · £1,100,0006 months ago13 Feb 2026
- 433 CANNON HILL LANE, LONDON, SW20 9HHSemi-detached · £650,0003 years ago21 Jul 2023
- 399 CANNON HILL LANE, LONDON, SW20 9HHTerraced · £620,0003 years ago24 Mar 2023
- 443 CANNON HILL LANE, LONDON, SW20 9HHTerraced · £858,0114 years ago1 Dec 2021
- 425 CANNON HILL LANE, LONDON, SW20 9HHTerraced · Not a standard market sale · £550,0004 years ago30 Sept 2021
- 457 CANNON HILL LANE, LONDON, SW20 9HHTerraced · Not a standard market sale · £650,0005 years ago6 Aug 2021
- 459 CANNON HILL LANE, LONDON, SW20 9HHTerraced · Not a standard market sale · £650,0005 years ago30 Jun 2021
- 405 CANNON HILL LANE, LONDON, SW20 9HHTerraced · Not a standard market sale · £430,0007 years ago27 Nov 2018
Homes here go for about £754,006 — the median of the last 4 market sales in SW20 9HH, £620,000 to £1,100,000.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
Nearby applications
- 433 Cannon Hill Lane Merton SW20 9HHPermittedNext door
- Cannon Hill Lane Merton SW20 9HHPermittedNext door
- 431 Cannon Hill Lane Merton SW20 9HHPermittedNext door
- 431 Cannon Hill Lane Merton SW20 9HHPermittedNext door
- 437 Cannon Hill Lane Merton SW20 9HHPendingNext door
- 2 Glenthorpe Road Merton SM4 4JWRefused48 yd